In this site when search murder_drones we see a lot of stuff that are not furry content, the majority is anthropomorphic robots, but the characters are maquines machines , not life beings, it is like have arts from cartoon “a teenage robot”, and more, a lot of this stuff was approved by the moderators, if continue like this the site will lost the identity, I think that it is even against the rules of the e621

it might help posting some examples of content that you seem to disagree with.

But in general e621 does not care whether or not a character is made of living flesh/matter or just a object, we do have a animate_inanimate tag for example.

And as long as their not indistinguishable from humans(like Android 18 from DBZ for example) robots are ok.

I don't see how non-human robots somehow leads to the downfall of the site as a whole
We have kemonomimi which are just humans with animal ears, those are arguably worse

With the popularity of tags like living_machine, I don’t see why murder drones wouldn’t qualify.